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The Robot Parade Flashing Card Pack provides an engaging group activity for participants of all ages to learn how electricity flows through circuits with Bare Conductive’s Electric Paint. It introduces circuit symbols, component polarity and switches, and leads participants through attaching an LED and coin cell battery to make their designs flash.

Bare Conductive’s Electric Paint is just like any other water-based paint, except that it’s electrically conductive. This means that you can paint wires directly onto paper.

The pack contains everything you need to lead a group of up to 30 in learning the basics of circuits and electricity using Electric Paint.

Master the basic principles of electronics and create colourful flashing robot cards in the process!

TECHNICAL DETAILS

• Great for use in the classroom, after school clubs or at home. • This activity supports STE(A)M and the Design & Technology curriculum • Suitable for KS2 & KS3 students. • Draw a working circuit, cold solder components and create a switch • Learn about polarity • Duration 1 hr • Up to 30 participants • Easy and fun activity • Electric Paint is water-based, nontoxic and solvent free • Dries at room temperature in 10-15 minutes • Must be fully dry to work • Easily removable with soap and water

2. Squeeze a continuous bead of Electric Paint over the line, and make sure to paint onto each component leg to create an electrical connection.

3. Wait 15 minutes for the paint to dry and let the blinking begin!

How Does it Work?

Electric Paint is conductive which means that electricity can pass through it. A battery provides power, and the current passes through the paint to reach the components in the circuit.

When you make a circuit the LED and battery have to be joined in a complete loop for it to work. The paper switch has a conductive patch which completes the circuit when you close it — hence the LED starts flashing! Electricity flows from the positive leg of the battery to the positive leg of the LED and back round again. LEDs and batteries are polarised which means electricity will only flow in one direction and so they must go in the circuit the right way round.

• Contact – Does your Electric Paint circuit actually make contact with the components? — Add a blob at the base of the components to secure.

• Polarity – Is your LED or battery the wrong way round? Ensure the components are correctly positioned, positive legs in + holes.

• Short circuit – Are your LED or battery short-circuiting? — Take care to prevent Electric Paint from connecting between the legs! Take out the components and scrape away the paint in between or start again with another card template.

• Switch – Is the switch completely closing the circuit? — You may have to reposition it or paint a larger square of paint.

Cold Soldering

Electric Paint can be used as both a liquid wire and an adhesive. Use it to attach components to a range of materials. This is a great alternative to the soldering iron when you’re in a hurry, or working with children!

Series and Parallel Circuits

This is a brief introduction into how you can use Electric Paint to cold solder components and create circuits in parallel and series. Even if you know this already, sometimes it’s a bit difficult to visualise how these circuits can start to become graphics that you can play with.